Defensive Lob
In most cases, preparing to hit a defensive lob is a problem. If you are scrambling to survive a point, preparation is seldom the same, and fundamentals take second place to returning the ball high and deep any way you can. Points are not awarded for style. If you have time to set up perfectly with your feet, grip, and backswing, you probably shouldn’t be hitting a lob in the first place.
Regardless of the circumstances, consider these techniques when hitting a defensive lob. The first is footwork. Quickly step out and back with the foot on the same side as your dominant arm. Focus on the ball, but turn your shoulders in the direction in which you’re moving. Anytime you are in trouble on the court, shorten your backswing. If the other player has hit the ball hard enough, you may be able to just block the ball upward to return it.
Here is one other suggestion to escape from trouble: Direct your lobs crosscourt to reduce the amount of open court to which your opponent can smash. Open your racket face slightly. Lift the ball with a low-to-high swing. Get it well into the air so you’ll have enough time to recover and get back into position for the next shot. If you can, follow through to ensure depth on your return. The follow-through will be up and out, away from your body. A full follow-through will help you get the feel of gently lifting the ball into the air and deep into the backcourt. If you make a mistake, it’s better to make it too deep or too high rather than too short or too low.
Tennis: Steps to Success Jim Brown,Camille Soulier